package com.itheima.config;

import com.alibaba.druid.pool.DruidDataSource;
import com.github.pagehelper.PageInterceptor;
import org.apache.ibatis.logging.stdout.StdOutImpl;
import org.apache.ibatis.session.SqlSessionFactory;
import org.mybatis.spring.SqlSessionFactoryBean;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.PropertySource;
import org.springframework.jdbc.datasource.DataSourceTransactionManager;
import org.springframework.transaction.PlatformTransactionManager;

import javax.sql.DataSource;

/**
 * @author robin
 * @version 1.0
 */
@Configuration
@PropertySource("classpath:jdbc.properties")
@MapperScan("com.itheima.dao")
public class MybatisConfig {
    @Value("${jdbc.driver}")
    private String driver;
    @Value("${jdbc.url}")
    private String url;
    @Value("${jdbc.username}")
    private String username;
    @Value("${jdbc.password}")
    private String password;

    /**
     * 配置数据源
     *
     * @return
     */
    @Bean
    public DataSource dataSource() {
        DruidDataSource dataSource = new DruidDataSource();
        dataSource.setDriverClassName(driver);
        dataSource.setUrl(url);
        dataSource.setUsername(username);
        dataSource.setPassword(password);
        return dataSource;
    }

    /**
     * SqlSessionFactoryBean
     *
     * @param dataSource
     * @return
     */
    @Bean
    public SqlSessionFactory sqlSessionFactory(DataSource dataSource) throws Exception {
        SqlSessionFactoryBean sqlSessionFactoryBean = new SqlSessionFactoryBean();
        sqlSessionFactoryBean.setDataSource(dataSource);
        sqlSessionFactoryBean.setTypeAliasesPackage("com.itheima.domain");
        //设置分页插件:PageInterceptor
        org.apache.ibatis.session.Configuration configuration = new org.apache.ibatis.session.Configuration();
        configuration.setLogImpl(StdOutImpl.class);
        sqlSessionFactoryBean.setConfiguration(configuration);
        sqlSessionFactoryBean.setPlugins(new PageInterceptor());
        SqlSessionFactory sqlSessionFactory = sqlSessionFactoryBean.getObject();
        return sqlSessionFactory;
    }


    /**
     * 配置事务管理器
     */
    @Bean
    public PlatformTransactionManager primaryTransactionManager(DataSource dataSource) {
        DataSourceTransactionManager transactionManager = new DataSourceTransactionManager();
        transactionManager.setDataSource(dataSource);
        return transactionManager;
    }
}
